1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
iris [78.8K]
3 years ago
10

Guys please help! In triangle CDE, the measure of angle C is 90 degrees, side CD is 15 and DE is 3 more than CE. Find the length

of the longest side of CDE.
Mathematics
1 answer:
AURORKA [14]3 years ago
4 0
You can calculate it using the law of cosines: c^2=a^2+b^2-2*a*b*cos(C)

your triangle is
CD=15=a
CE=?=b
DE=CE+3=b+3=c
and C=90°

-> insert those values, with c substituted with b+3 to remove c

c^2=a^2+b^2-2*a*b*cos(C)
(b+3)^2=15^2+b^2-2*15*b*cos(90)
cos(90)=0->
(b+3)^2=15^2+b^2
b^2+2*3*b+3^2=225+b^2
6b+9=225
6b=216
b=36=CE

DE=CE+3=36+3=39
You might be interested in
Can someone help me with this math problem asap??<br> please answer correctly or I'll report it!
erma4kov [3.2K]

Answer:

A.

We can see that the rectangles are congruent meaning they can be mapped onto one another perfectly and therefore 13 and t make up a rectangle the same size and shape as the second one. This means that 13+t will add to 17 since the rectangle they make up is congruent to the second one

Step-by-step explanation:

6 0
2 years ago
PLEASE ANSWER NUMBER 17
zzz [600]
A=1 and 2
B=2 and 4
C=1,2,7 and 14
D=1,2,4,and 8
7 0
3 years ago
The radius of a circle is 14 meters. What is the circle circumference
seropon [69]

Step-by-step explanation:

HERE,

redius of a circle (r)=14 meters.

we know that,

\boxed{\red{\sf{circle~ circumference=2\times \pi \times r   }}} 

<u>According</u><u> </u><u>to</u><u> </u><u>the question</u><u>, </u>

circle circumference=

  • \tt{2\times \pi \times 14   }

      

  • \tt{2 \times \dfrac{22}{7} \times 14   }  

    

  • \tt{2 \times \dfrac{22}{\cancel{7}} \times \cancel{14}}    

  

  • \tt{2\times 22 \times 2   }   

   

  • \tt{ 88~meters   }      

so, the circumference of that circle is <em><u>8</u></em><em><u>8</u></em><em><u> </u></em><em><u>meters</u></em><em><u>.</u></em>

5 0
2 years ago
118 meters in 2 seconds, how many meters in 11 seconds?
erastova [34]

Answer:

It would be 649

Step-by-step explanation:

118 ÷ 2= 59

59 x 11= 649

3 0
3 years ago
Read 2 more answers
Does the data in the table represent a direct variation or an inverse variation? Write an equation to model the data in the tabl
AURORKA [14]

Answer:

yellow

Step-by-step explanation:

bc blue

5 0
2 years ago
Other questions:
  • Please help with slope!
    10·1 answer
  • Ben claims that the points (2. 4), (4, 8) and (8, 12) tie on a line. Show that Ben is incorrect.
    10·1 answer
  • A building casts a shadow 48ft long. At the same time, a 40ft tall flagpole casts a shadow 9.6ft long
    9·1 answer
  • If f(x) = 3x - 4 and g(x) = x + 5, then find f(x) - g(x).
    5·2 answers
  • What is the answer to 7,8,9
    8·1 answer
  • Pleaseeeee helppppp!!!!! I have to turn this in...!!!
    12·1 answer
  • Adam rode in a bike-a-thon. At the end of each hour of the bike-a-thon, he recorded the total distance he had traveled since the
    15·2 answers
  • No qeustoin, just want to give people points
    7·2 answers
  • The vertex of the parabola below is at the point (3, 2), and the point (4,6) is
    12·1 answer
  • They buy 400g with costs 2.56 how much would 350g cost
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!